%0 Journal Article %A Y. Touail %T Set-valued mappings: fixed point results with $\beta$-function and some applications %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2024 %P 61-79 %V 63 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIMI_2024_63_a4/ %G en %F IIMI_2024_63_a4